diff --git a/keycloak/justfile b/keycloak/justfile
index 28abda9..32c86eb 100644
--- a/keycloak/justfile
+++ b/keycloak/justfile
@@ -258,6 +258,17 @@ add-audience-mapper client_id audience:
     export KEYCLOAK_AUDIENCE={{ audience }}
     dotenvx run -q -f ../.env.local -- tsx ./scripts/add-audience-mapper.ts
 
+# Add audience mapper to client scope
+add-audience-mapper-to-scope realm scope_name audience:
+    #!/bin/bash
+    set -euo pipefail
+    export KEYCLOAK_ADMIN_USER=$(just admin-username)
+    export KEYCLOAK_ADMIN_PASSWORD=$(just admin-password)
+    export KEYCLOAK_REALM={{ realm }}
+    export SCOPE_NAME={{ scope_name }}
+    export KEYCLOAK_AUDIENCE={{ audience }}
+    dotenvx run -q -f ../.env.local -- tsx ./scripts/add-audience-mapper-to-scope.ts
+
 # Delete Keycloak client
 delete-client realm client_id:
     #!/bin/bash
diff --git a/keycloak/scripts/add-audience-mapper-to-scope.ts b/keycloak/scripts/add-audience-mapper-to-scope.ts
new file mode 100755
index 0000000..e60f382
--- /dev/null
+++ b/keycloak/scripts/add-audience-mapper-to-scope.ts
@@ -0,0 +1,80 @@
+#!/usr/bin/env tsx
+
+import KcAdminClient from '@keycloak/keycloak-admin-client';
+import invariant from 'tiny-invariant';
+
+const main = async () => {
+    const KEYCLOAK_HOST = process.env.KEYCLOAK_HOST;
+    const KEYCLOAK_ADMIN_USER = process.env.KEYCLOAK_ADMIN_USER;
+    const KEYCLOAK_ADMIN_PASSWORD = process.env.KEYCLOAK_ADMIN_PASSWORD;
+    const realm = process.env.KEYCLOAK_REALM;
+    const scopeName = process.env.SCOPE_NAME;
+    const audience = process.env.KEYCLOAK_AUDIENCE;
+
+    invariant(KEYCLOAK_HOST, 'KEYCLOAK_HOST environment variable is required');
+    invariant(KEYCLOAK_ADMIN_USER, 'KEYCLOAK_ADMIN_USER environment variable is required');
+    invariant(KEYCLOAK_ADMIN_PASSWORD, 'KEYCLOAK_ADMIN_PASSWORD environment variable is required');
+    invariant(realm, 'KEYCLOAK_REALM environment variable is required');
+    invariant(scopeName, 'SCOPE_NAME environment variable is required');
+    invariant(audience, 'KEYCLOAK_AUDIENCE environment variable is required');
+
+    const kcAdminClient = new KcAdminClient({
+        baseUrl: `https://${KEYCLOAK_HOST}`,
+        realmName: 'master',
+    });
+
+    try {
+        await kcAdminClient.auth({
+            username: KEYCLOAK_ADMIN_USER,
+            password: KEYCLOAK_ADMIN_PASSWORD,
+            grantType: 'password',
+            clientId: 'admin-cli',
+        });
+
+        console.log('Authentication successful.');
+
+        // Set target realm
+        kcAdminClient.setConfig({
+            realmName: realm,
+        });
+
+        // Find the client scope
+        const clientScopes = await kcAdminClient.clientScopes.find();
+        const scope = clientScopes.find(s => s.name === scopeName);
+        if (!scope) {
+            throw new Error(`Client scope '${scopeName}' not found`);
+        }
+
+        invariant(scope.id, 'Client scope ID is not set');
+
+        // Check if mapper already exists
+        const mapperName = `aud-mapper-${audience}`;
+        const existingMappers = await kcAdminClient.clientScopes.listProtocolMappers({ id: scope.id });
+
+        if (existingMappers.some((mapper) => mapper.name === mapperName)) {
+            console.warn(`Audience mapper '${mapperName}' already exists in scope '${scopeName}'.`);
+            return;
+        }
+
+        // Create audience mapper
+        const audienceMapper = {
+            name: mapperName,
+            protocol: 'openid-connect',
+            protocolMapper: 'oidc-audience-mapper',
+            config: {
+                'included.client.audience': audience,
+                'id.token.claim': 'false',
+                'access.token.claim': 'true',
+            },
+        };
+
+        await kcAdminClient.clientScopes.addProtocolMapper({ id: scope.id }, audienceMapper);
+        console.log(`Audience mapper '${mapperName}' added to client scope '${scopeName}'.`);
+
+    } catch (error) {
+        console.error('Error adding audience mapper to scope:', error);
+        process.exit(1);
+    }
+};
+
+main();